pyahu, Bryconamericus Azpelicueta [M. de las M.], Casciotta [J. R.] & Almirón [A. E.] 2003:582, Figs. 1-3, 5 [Revue Suisse de Zoologie v. 110 (no. 3); ref. 27482] Arroyo Tateto, 25°47'12.8"S, 53°58'12.9"W, Iguazú basin, Misiones, Argentina. Holotype: MLP 10450 [ex AI 101]. Paratypes: MHNG 2639.48 (10); MTD F 27048-27051 (4). Type catalog: Zarske 2003:16 [ref. 27474], Nadalin & López 2015:2 [ref. 34112]. •Valid as Bryconamericus pyahu Azpelicueta, Casciotta & Almirón 2003 -- (Casciotta et al. 2004:64 [ref. 27664], da Silva 2004:55 [ref. 27870], Almirón et al. 2004:9 [ref. 27986], Langeani et al. 2005:389 [ref. 28234], Koerber 2011:2 [ref. 31122], Koerber 2014:3 [ref. 33621], Thomaz et al. 2015:Add. 5 [ref. 33893], Mirande & Koerber 2015:21 [ref. 35117], Reis et al. 2020:460 [ref. 38364]). Current status: Valid as Bryconamericus pyahu Azpelicueta, Casciotta & Almirón 2003. Stevardiidae: Diapominae. Distribution: South America: Iguaçu River basin (Argentina and Brazil). Habitat: freshwater.